96 lines
3.0 KiB
C
96 lines
3.0 KiB
C
/****************************************************************************
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* sched/group/group_exitinfo.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <assert.h>
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#include <errno.h>
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#include <nuttx/sched.h>
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#include <nuttx/spinlock.h>
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#include <nuttx/binfmt/binfmt.h>
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#include "sched/sched.h"
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#include "group/group.h"
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#ifdef CONFIG_BINFMT_LOADABLE
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: group_exitinfo
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*
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* Description:
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* This function may be called to when a task is loaded into memory. It
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* will setup the to automatically unload the module when the task exits.
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*
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* Input Parameters:
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* pid - The task ID of the newly loaded task
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* bininfo - This structure allocated with kmm_malloc(). This memory
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* persists until the task exits and will be used unloads
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* the module from memory.
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*
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* Returned Value:
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* This is a NuttX internal function so it follows the convention that
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* 0 (OK) is returned on success and a negated errno is returned on
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* failure.
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*
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****************************************************************************/
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int group_exitinfo(pid_t pid, FAR struct binary_s *bininfo)
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{
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FAR struct tcb_s *tcb;
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FAR struct task_group_s *group;
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irqstate_t flags;
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DEBUGASSERT(bininfo != NULL);
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flags = spin_lock_irqsave(NULL);
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/* Get the TCB associated with the PID */
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tcb = nxsched_get_tcb(pid);
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if (tcb == NULL)
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{
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spin_unlock_irqrestore(NULL, flags);
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return -ESRCH;
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}
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/* Get the group that this task belongs to */
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group = tcb->group;
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DEBUGASSERT(group != NULL && group->tg_bininfo == NULL);
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/* Save the binary info for use when the task exits */
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group->tg_bininfo = bininfo;
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spin_unlock_irqrestore(NULL, flags);
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return OK;
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}
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#endif /* CONFIG_BINFMT_LOADABLE */
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